If by the expression "not practical" you mean "not easy," you are right. Definitely it is not easy. Yet it should be tried. You may say it is risky trying it. Surely it cannot be more risky than trying a nuclear war.

According to the Buddha's teaching the beginning of the life-stream of living beings is unthinkable. THe believer in the creation of life by God may be astonished at this reply. But if you were to ask him 'What is the beginning of God?' he would answer without hesitation 'God has no beginning', and he is not astonished at his own reply.

It is always a question of knowing and seeing, and not that of believing. The teaching of the Buddha is qualified as ehi-passika, inviting you to 'come and see', but not to come and believe.

The question has often been asked; Is Buddhism a religion or a philosophy? It does not matter what you call it. Buddhism remains what it is whatever label you may put on it. The label is immaterial. Even the label 'Buddhism' which we give to the teachings of the Buddha is of little importance. The name one gives is inessential.... In the same way Truth needs no label: it is neither Buddhist, Christian, Hindu nor Moslem. It is not the monopoly of anybody. Sectarian labels are a hindrance to the independent understanding of Truth, and they produce harmful prejudices in men's minds.

As long as you are conscious of yourself, you can never concentrate on anything.

First of all, Buddhism is neither pessimistic nor optimistic. If anything at all, it is realistic, for it takes a realistic view of life and the world. It looks at things objectively (yath?bh?tam). It does not falsely lull you into living in a fool's paradise, nor does it frighten and agonize you with all kinds of imaginary fears and sins. It tells you exactly and objectively what you are and what the world around you is, and shows you the way to perfect freedom, peace, tranquility and happiness.

Two ideas are psychologically deep-rooted in man: self-protection and self-preservation. For self-protection man has created God, on whom he depends for his own protection, safety and security, just as a child depends on its parent. For self-preservation man has conceived the idea of an immortal Soul or Atman, which will live eternally. In his ignorance, weakness, fear, and desire, man needs these two things to console himself. Hence he clings to them deeply and fanatically.